Vents TwinFresh Comfo RA1-25 User Manual page 11

7. Drill four fastening holes and fix the back cover of the ventilation unit on the wall with fours 4x40 screws and 6x60 dowels from the delivery set.
Prior to starting fixation of the back cover of the ventilation unit make arrangements for the power cable layout in accordance to the selected method,
see the Connection to Power Mains section, page 20.
8. Connect the contact socket of the switches to the circuit board and install the front panel of the ventilation unit.
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HOLE SPACING FOR THE FAN FASTENERS MM [INCHES]
150
(5 ⁄ '')
6 (
75
4 holes
(2 ⁄ '')
¼'')
75
(2 ⁄ '')
150
(5 ⁄ '')
110 ( 4 ⁄ '')
11